Which of the Following Species Is Both a Keystone Species

question 9

Multiple Choice

Which of the following species is both a keystone species and a flagship species?

• A)grizzly bear
• B)panda
• C)beaver
• D)dolphin
• E)alligator

---

Definitions:

RNA

Ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

Human Genome

The complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria.

Genes

The basic physical and functional units of heredity, made up of DNA, which determine specific characteristics by encoding proteins.

Recessive Genes

Genes that are not expressed in the phenotype unless two copies are present, one from each parent.